---

{ “title”: “ARRAY_SIZE”, “language”: “en-US”, “description”: “Return the number of elements in an array.” }

Function

Return the number of elements in an array.

Syntax

• ARRAY_SIZE(arr)

Parameters

• arr: ARRAY<T>.

Return value

• Returns how many elements arr contains.

Usage notes

• If the input arr is NULL, returns NULL.

Examples

• Arrays:

  • ARRAY_SIZE([1, 2, 3]) -> 3
  • ARRAY_SIZE(['a', NULL, 'b']) -> 3

• If the input arr is NULL, returns NULL

  • ARRAY_SIZE(NULL) -> NULL